{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0faa0fe6f90ea59b10d1b0f15ce0eb0c18eff186"
            },
            {
              "fixed": "2423a05dd0f21330c47ce0ae1cb54a8b0be821e2"
            },
            {
              "fixed": "472df1d103dbe3e9d09156f0667e36180e912c46"
            },
            {
              "fixed": "5d5fbfbbacd1efb13a9bf91317d4fde859ede4b9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "6.18.56"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98724.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: pci-epf: reject too-short SGL segments\n\nThe host controls an SGL segment's length. A nonzero length smaller than\none SGL descriptor makes nr_descs zero, so\nnvmet_pci_epf_get_sgl_segment() reads the type byte of sgls[-1] outside\nthe allocated buffer. If that byte contains a segment descriptor type,\nthe function also copies the preceding 16 bytes and returns a negative\ndescriptor count.\n\nThe read was reproduced in 3/3 KASAN boots with only the host transfer\nmocked by a KUnit test:\n\n  BUG: KASAN: slab-out-of-bounds in nvmet_pci_epf_get_sgl_segment\n  Read of size 1 by task kunit_try_catch\n  Call Trace:\n   nvmet_pci_epf_get_sgl_segment\n   nvmet_pci_epf_short_sgl_test\n  Kernel panic - not syncing: KASAN: panic_on_warn set ...\n\nReject segments that cannot hold one descriptor before allocating or\ntransferring their contents.",
  "id": "CVE-2026-98724",
  "modified": "2026-10-20T02:30:25.932118559Z",
  "published": "2026-10-18T15:47:01.614Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2423a05dd0f21330c47ce0ae1cb54a8b0be821e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/472df1d103dbe3e9d09156f0667e36180e912c46"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d5fbfbbacd1efb13a9bf91317d4fde859ede4b9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98724.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98724"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "nvmet: pci-epf: reject too-short SGL segments"
}